This thread will handle questions from me to you about balance and how you want to play.
Left up to SheShe and I you may end up being forced into a style of play you don't like so this is why I'm creating this thread.
The first question is about death.
Currently there are a handful of spells that will breath life back into a character again.
The first is a level 3 cleric spell, Revivify. It requires a diamond worth 300 or more and it must be cast within a minute of death, so within 10 turns in an encounter. Yulya would need to be 5th level to cast this 3rd tier spell. It cannot restore missing body parts.
At 9th level she would have access to raise dead which is a 5th tier spell. It requires a 500 gold diamond. You have 10 days to accomplish this. Again it won't restore missing body parts. It will close mortal wounds. Greater restoration will restore missing parts afterwards. That's also 5th tier.
In any case it takes about 4 long rests to fully restore the person to full working order.
Reincarnation is available through the church and is a druid spell costing 1000 gold plus 1000 gold in supplies and a piece of the victim. It restors everything but will likely change the race of the character as a consequence.
Wish is then the big daddy of all spells and requires a wizard of level 17 and has a 33% chance of never being able to be cast again. It can duplicate any spell or create a custom effect or object up to 25,000 gold in value.